CN219342402U

CN219342402U - Multicomponent polyester composite monofilament

Info

Publication number: CN219342402U
Application number: CN202223176192.0U
Authority: CN
Inventors: 蔡清来; 何平静; 许丹
Original assignee: Fujian Chengdong New Material Technology Co ltd
Current assignee: Fujian Chengdong New Material Technology Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-07-14
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses a multi-component polyester composite monofilament, which comprises a skin layer and a core layer, wherein the skin layer coats the core layer, the core layer is a composite layer, the composite layer is PA6 composite PBT, the skin layer is PET, and the sectional area ratio of the skin layer to the core layer is (30-50): (50-70) the melting point temperature of the skin layer is greater than the melting point temperature of the core layer. After the scheme is adopted, the composite monofilament has uniform thread warp, high wear resistance and folding resistance and uniform dyeing in weaving.

Description

Multicomponent polyester composite monofilament

Technical Field

The utility model relates to the technical field of monofilament spinning, in particular to a multi-component polyester composite monofilament.

Background

Polyester monofilaments, polyester (mainly polyethylene terephthalate and PET) monofilaments in the current market have residual rigidity and insufficient toughness in the using process due to the existence of benzene rings on molecular chains, and have poor bending recovery property, so that the application of the polyester monofilaments in textile fabrics and shoe uppers is limited.

Compared with the application number CN202111184651.7 polyamide polyester composite monofilament and the preparation method, the composite monofilament is PBT composite polycaprolactam, and has the beneficial effects that the core layer of the polyamide polyester composite monofilament is of a special-shaped structure, the outer surface of the core layer is provided with a plurality of grooves, the contact area between the polycaprolactam material of the core layer and the polybutylene terephthalate material of the skin layer is increased, the skin layer and the core layer are difficult to strip, the anti-stripping strength between the skin and the core layers is improved, however, the wear resistance and the folding resistance of the monofilament are not excellent enough, the strength of the monofilament cannot be improved, and the monofilament is provided with a plurality of grooves, so that the problems of uniform weaving and dyeing and the like are not solved.

Disclosure of Invention

In order to solve the problems, the utility model provides a multi-component polyester composite monofilament.

The utility model discloses a multi-component polyester composite monofilament, which comprises a skin layer and a core layer, wherein the skin layer coats the core layer, the core layer is a composite layer, the composite layer is PA6 composite PBT, the skin layer is PET, and the cross-sectional area ratio of the skin layer to the core layer is (30-50): (50-70) the sheath layer having a melting point temperature greater than the core layer.

Preferably, the sectional areas of the skin layer and the core layer are one of double-layer round, outer circle inner triangle, island type or multi-layer round.

Preferably, the core layer in the double-layer circular shape or the multi-layer circular shape is an eccentric circle or a concentric circle.

Preferably, the breaking strength of the composite monofilament is 3.0-5.0cN/dtex.

Preferably, the composite layer is of a double-layer structure, the outer layer of the double-layer structure is PET, and the inner layer of the double-layer structure is PBT.

Optionally, the composite layer has a double-layer structure, the outer layer of the double-layer structure is PBT, and the inner layer is PA6.

Preferably, the PET and PBT of the composite layer have a cross-sectional ratio (30-50): (50-70).

Preferably, the difference in melting point temperature between the skin layer and the core layer is 10-60 ℃.

Optionally, the core layer has a melting point temperature of 200-220 ℃.

Optionally, the melting point temperature of the skin layer is 230-260 ℃.

By adopting the technical scheme, the utility model has the beneficial effects that:

1. the composite monofilament has uniform thread warp, high wear resistance and folding resistance, and can be dyed uniformly in weaving.

2. The monofilament has the cross section of double-layer round shape or outer circle inner triangle shape, and the core layer is arranged to form a special-shaped structure, so that the contact area between the polyurethane material of the core layer and the polyurethane material of the skin layer is increased, the skin layer and the core layer are difficult to peel, and the peel strength between the skin and the core layer is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the second speed below are only one or several embodiments of the present utility model, and other drawings can be obtained according to such drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a skin-core structure of the present utility model;

FIG. 2 is a schematic diagram of a skin-core structure according to the present utility model;

FIG. 3 is a schematic diagram of a sheath-core structure according to the present utility model;

FIG. 4 is a schematic diagram of a sheath-core structure according to the present utility model;

FIG. 5 is a schematic diagram of a skin-core structure of the present utility model;

the main reference numerals illustrate: 1. a core layer; 2. a cortex layer.

Detailed Description

The following will describe embodiments of the present utility model in detail with reference to the drawings and examples, thereby solving the technical problems by applying technical means to the present utility model, and realizing the technical effects can be fully understood and implemented accordingly. It should be noted that, as long as no conflict is formed, each embodiment of the present utility model and each feature of each embodiment may be combined with each other, and the formed technical solutions are all within the protection scope of the present utility model.

In the following description, meanwhile, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced without some of these specific details or in the specific manner described herein.

Example 1

Referring to fig. 1-5, a multi-component polyester composite monofilament comprises a sheath layer 2 and a core layer 1, wherein the core layer 1 is a PBT composite PA6, and the ratio of the cross-sectional areas of the PBT and the PA6 of the core layer 2 is 30:70, skin 2 is PA6, the ratio of skin 2 to core 1 cross-sectional area is 30:70, the sectional areas of the skin layer 2 and the core layer 1 are double-layer circles and concentric circles, and the melting point temperature of the skin layer 2 is higher than that of the core layer 1.

Example 2

This embodiment differs from example 1 in that the ratio of the cross-sectional areas of PBT and PA6 of the core layer 1 is 50:50.

example 3

This embodiment differs from example 1 in that the ratio of the cross-sectional areas of PBT and PA6 of the core layer 1 is 40:60.

example 4

This embodiment differs from example 1 in that the ratio of the cross-sectional areas of PBT and PA6 of the core layer 1 is 60:40.

example 5

This embodiment differs from example 1 in that the ratio of the cross-sectional areas of PBT and PA6 of the core layer 1 is 70:30.

example 6

This example differs from examples 1-5 above in that the ratio of the cross-sectional areas of the skin layer 2 to the core layer 1 is 50:50.

example 7

This example differs from examples 1-5 above in that the ratio of the cross-sectional areas of the skin layer 2 to the core layer 1 is 60:40.

example 8

This example differs from examples 1-5 above in that the ratio of the cross-sectional areas of the skin layer 2 to the core layer 1 is 70:30.

example 9

This embodiment differs from the above-described embodiments 1-8 in that the cross-sectional areas of the skin layer 2 and the core layer 1 are double-layer circles, but are eccentric circles.

Example 10

This embodiment differs from the above-described embodiments 1 to 8 in that the cross-sectional areas of the skin layer 2 and the core layer 1 are in the shape of an outer circular inner triangle.

Example 11

This embodiment differs from the above-described embodiments 1 to 8 in that the cross-sectional areas of the skin layer 2 and the core layer 1 are islands-in-the-sea.

Example 12

This embodiment differs from the above-described embodiments 1-8 in that the skin layer 2 and the core layer 1 have a multi-layer circle in cross-sectional area.

Example 13

Referring to fig. 1-5, a multi-component polyester composite monofilament comprises a sheath layer 2 and a core layer 1, wherein the core layer 1 is a PBT composite PA6, and the ratio of the cross-sectional areas of the PBT and the PA6 of the core layer 2 is 30:70, skin 2 is PA6, the ratio of skin 2 to core 1 cross-sectional area is 30:70, the sectional areas of the skin layer 2 and the core layer 1 are double-layer circles and are concentric circles, the melting point temperature of the skin layer 2 is higher than that of the core layer 1, the melting point temperature of the skin layer is 240 ℃, and the melting point temperature of the core layer is 200 ℃.

Example 14

This example differs from example 13 above in that the sheath layer has a melting point temperature of 250 c and the core layer has a melting point temperature of 200 c.

Example 15

This example differs from example 14 above in that the sheath layer has a melting point temperature of 255 c and the core layer has a melting point temperature of 200 c.

Example 16

This example differs from example 15 above in that the sheath layer has a melting point temperature of 260 c and the core layer has a melting point temperature of 200 c.

Example 17

This example differs from examples 13-16 above in that the core layer has a melting point temperature of 210 ℃.

Example 18

This example differs from example 17 above in that the core layer has a melting point temperature of 220 ℃.

Example 19

This example differs from example 18 above in that the core layer has a melting point temperature of 230 ℃.

The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.

Claims

1. A multicomponent polyester composite monofilament characterized by: the composite monofilament comprises a skin layer (2) and a core layer (1), wherein the skin layer (2) is used for coating the core layer (1), the core layer (1) is a composite layer, the composite layer is PA6 composite PBT, the skin layer (2) is PET, and the sectional area ratio of the skin layer (2) to the core layer (1) is (30-50): (50-70), the melting point temperature of the skin layer (2) being greater than the melting point temperature of the core layer (1).

2. The multicomponent polyester composite monofilament of claim 1, wherein: the sectional areas of the skin layer (2) and the core layer (1) are one of double-layer round, outer circle inner triangle, island type or multi-layer round.

3. The multicomponent polyester composite monofilament of claim 2, wherein: the core layer (1) in the double-layer circular shape or the multi-layer circular shape is an eccentric circle or a concentric circle.

4. The multicomponent polyester composite monofilament of claim 1, wherein: the breaking strength of the composite monofilament is 3.0-5.0cN/dtex.

5. The multicomponent polyester composite monofilament of claim 1, wherein: the composite layer is of a double-layer structure, the outer layer of the double-layer structure is PA6, and the inner layer of the double-layer structure is PBT.

6. The multicomponent polyester composite monofilament of claim 1, wherein: the composite layer is of a double-layer structure, the outer layer of the double-layer structure is PBT, and the inner layer of the double-layer structure is PA6.

7. The multicomponent polyester composite monofilament of claim 1, wherein: the PA6 and the PBT of the composite layer have the following cross section ratio (30-50): (50-70).

8. The multicomponent polyester composite monofilament of claim 1, wherein: the difference between the melting point temperature of the skin layer and the core layer is 10-60 ℃.

9. The multicomponent polyester composite monofilament of claim 1, wherein: the melting point temperature of the core layer is 200-230 ℃.

10. The multicomponent polyester composite monofilament of claim 1, wherein: the melting point temperature of the skin layer is 240-260 ℃.